Did something this morning I'd been trying to avoid! The left steering ball joint on the front axle wouldn't come loose so I could put a new rubber boot on it. I'd tried soaking, tapping & even locking two nuts together & using the impact wrench, nothing worked. So, this morning, I got out the torch! Heated it to a nice cherry red, held a rag with ice cubes in it on the bolt, then smacked it with the hammer. It came out!